Pitter-patter and Pad

Pitter-patter noun - A series of rapid tapping sounds.

Pad and pitter-patter are semantically related in soft beat topic. In some cases you can use "Pad" instead the phrase "Pitter-patter" as a noun or a verb.

Pad noun - A number of sheets of writing paper glued together at one edge.

Pitter-patter and pad are semantically related in walk quietly topic. Sometimes you can use "Pitter-patter" instead the word "Pad" as a verb or a noun.